As with any introduction of new technology, various experimental approaches were repeatedly attempted, and naturally many vehicles of unusual or even eccentric design were created.
Although these trains lacked the vivid and colorful appearance seen on modern rolling stock, their mechanical diversity was remarkable,.

References
Challenge to Powerful Railcars - Diesel Electric in Operation    • Challenge to Powerful Railcars - Diesel El...  
Pre-War Diesel Super Express Plan    • Pre-War Diesel Super Express Plan  
Pioneers of the Dawn: Hydraulic AC EMUs    • Pioneers of the Dawn: Hydraulic AC EMUs  
黎明期の異端兒たち----磁星變速機式誘導電動機電車    • 黎明期の異端兒たち----磁星變速機式誘導電動機電車  
EH10高速試驗    • EH10高速試驗  
Ill-Fated Dual-Mode: The Story of Kani 22    • Ill-Fated Dual-Mode: The Story of Kani 22  
ステンレス氣動車    • ステンレス氣動車  
キハネに挑んだ車兩    • キハネに挑んだ車兩  
NVIDIA Iray GPU Rendering https://www.nvidia.com/en-us/design-v...
Super Notch Man Ver.3 イメージテクノロジー研究所
引用畫像 http://www.publicdomainfiles.com/
https://commons.wikimedia.org/
音樂の卵 https://ontama-m.com/index.html
CGはじめました http://turbotrain.net/CG.htm